Octpenthexium (Oph)

Octpenthexium is the systematic name of the theoretical ۸۵۶. element in the periodic table with a symbol of Oph and atomic number of 856. Octpenthexium, also known as element 856, has هشتصد و پنجاه و شش protons in its nucleus, and هشتصد و پنجاه و شش electrons in its shells.